Condensing locomotive



Aug. 29, 1933. E. L. SCHELLENS ET AL 1,924,341

CONDENSING LOCOMQTIVE Filed Sept. 5, 1950 4 Sheets-Sheet 1 IN ,o 4

' 11406.4( ATTORNEYS g- 29, 1933- 4 E. L. SCHELLENS ET! AL 1,924,341

CONDENSING LOCOMOTIVE Wa ATTORNEYS Aug. 29, 1933. E. SCH ELLENS ET AL 1,924,341

CONDENSING LOCOM )TIVE Filed Sept. 5, 1930 4 Sheets-Sheet 3 4 ATTORNEY 5 9, 1933. E. L. SCHELLENS ET AL 1,924,341

CONDENSING LOCOMQTIVE Filed Sept. 5, 1930 4 Sheets-Sheet 4 z. E T BY a. w WY'MW ATT RNEY$ Patented Aug. 29, 1 933 J I v ,n

-0NDEN NG L CQ I a Eugene Schellens", .magewoon; N; are: Christopher A. Schellens', Marblehead, Mass i V ia'ssignors toC-S Engineering Company, Eng'le-l j c wood, J L; a',corpora tioli oiDel'awar'e Application septemberi eso seriammuasaz I 1 dClaim's'. '1 (C 1;co 96) 1f' V This invention relates to locomotives adapted Fig; 3 is across section'taken substantially on to condense exhaust steam with the main object the line 3 3 of Fig.2; P v I a i i view' of saving water. 7 1 Fig.4 isafragmentaryview of a modification'of" '7 v The invention is particularly useful in locothe inventionya'nd i 1 v motives having exhaust steam operated draft-rap Fig. 5 is-[a-"diagrammaticview showing; the Off pliances, and we propose to lead the] exhaust ganizationof the vvariousparts of our invention 1i steam of the locomotive engines to the-draft'ap in simple 'form." 1 f pliance and to lead the exhauststeam of the draft In the drawings; we have illustrat'ed our invenappliance to a condenser or radiator of suchcontion' embodied in a type of locomotive knownas 1 struction and size as to have ample cooling sur a Shaylocomotivqaltliough it isto be under- ,65

face to properly condense the exhaust steam of stood that the-invention may be advantageously the locomotive for return tothe boiler aswater; embodied in many; other types of locomotives We also propose to provide fan means for cooling The locomotive herein shown comprises in gen I the condenser, which fan meansmay be driven eral a'boiler A, afire. box B, steam enginesC; and

15 by exhaust steam from the draft appliance, or "suitable frameandb'ody structure sis-indicated.

t 25 tank to theboiler.

directly from the locomotive engine the'exhaust In this particular'type of locomotive the drivers steam of the 'fan means being deliveredfito the aredriven from the-e'ngine C by'means of suit-f condenser. k i n ableigearing andsha fting, butinasmuch' as this .The condenser or radiatoris preferably" one forms no particular part of our invention-andyis' 20 having the condensing *ste'am on: the inside of very well known in theartQit-hasnot been illusan air current onthe outside. trated p f p l owe/further contemplate leading the ondensa'te In accordance with our invention We equip the. from the condenser into a hot -well tankhaving' locomoti'Ve 'Wtih adraft appliance D comprising means for controlling the boiler feed from the ,adraftfan 4, asteam operated'turbineflt'; for' driv-x H 'l .fingthe fan; and a stack'fi. The turbineoisop Other objects reside in the provision of certain eratedfby exhauststeam from the locomotive features of control for alocomotive of the'charef engines, the exhaust steam'being led fromthe acter described. 7 1 engines totheturbinebymeans of a-pipe 7j.-""

In general we provide'acons truction, arrange ;'-I'lie locomotive-is equipped with a condenser 30 ment, and combination of parts whereby "weare for radiator EWhichQ-inthis intanc e, is' shown enabled to effectively condense the exhaust steam asex'tending part-way along the sides'of tlie'locog I of the locomotive engines andi'acce'ssorie's by commotive 'andacr'oss the front thereof and occupy pact condensing means adapted tobe carried in"g'la great "portion of the height thereof; thus by the locomotive with ample road-clearance. ef ording'very considerable cooling surface. The

35 A further object of the inve'ntion- -re'sides in condenser or radiator preferably comprises'a mul' passing the'exhaust'steam of the locomotive entiplicity ot finned A verticallyT'extending tube'sf-Z}, gi nes either serially of in; parallel through the securedat their ends into-tube sheets'9 which; steam turbinesof one or more steam turbineo'p in turn;: are secured i to headers. We prefer to erated locomotive appliancesand from thence construct the -radiator.in two sections, vertically 40 into a. condenser where the exhaust steam is co'n conside'red, "arid" provide an upper header-f 10 for" fdensed for use as locomotive feed water., the upper section, a lower header'llfor thelow er How the foregoing,-.together with such' other section, and anfint'er nediate header 12 divided objects and'advantages as may hereinafter ap into two compartments;13 and14, the former 1 pear,- or are incident to our invention, are real; constituting in effecta lower header for'theupper- 45 ized, is illustrated in preferred form in the acsection andthe latterfan 'uppergheaderior the companying drawings, wherein-- "'loWersectionJ H i s u i Y 1 is a more or less diagrammatic sideele- "The'turbinefi is'provided with outlets l5 and I vation of a locomotive embodying'ourinvention. 1'6 for the exhaust of-flsteam and these outlets, T Fig. 2 isan enlarged elevational 'viewbf the illustrated in Fig, 3, are provided with. pipe 3 50 front portion of 'thejloc'omotiv e shown-in Fig.1, connections 17a'nd18 iespectively forleadingthe .105 certain parts being'brokenout to give; a'clear, ,exhauststeam: to -the condenser"E. In this in-j full view of other parts, and certain parts being stance the p pe connections: 17 and 18. each in-- shown in cross'section asthey wouldappearif a clude a branch ls'jleading'to the upper header cross section were taken substantially onthe'line of 'thei-uppe'r section of (the condenser"'and a*3 j I a f l branch ZO leadingjtoithe header compartment 14111 0 a of the lower condenser section. Thus it will be and enters the lower headers.

seen'that the exhaust steam'enters the condenser sections at the top, condenses on its way down The condensate from the header compartment 13 drains into the lower header llby means of pipes 21.v

Air is drawn through the condenser from the outside by cooling means F comprising a pair of fans 22 and 23 mounted on a vertical shaft, 24

and operating to drawcool. air in'and to expelthe heated air out through the roof anddown under the locomotive. These fans are driven by a steam turbinewG located between the fans; f 1

In the arrangement illustrated in Figs; 2 and 3 and 5 the turbine G receives its steam" asex haust steam from the locomotiveengines bymeans of a pipe 25 leading from the engine ex: haust steam pipe 7. The exhaust'steam oi the turbine G is led. to pipes 27 connected with the brancheslQ above mentioned. We have thus provided an arrange- .ment in which the turbines oi thecoolingand draft fans are connected'in parallel.-

. I suresteam nozzles maybe provided in the turbine 1 Figures 1 and 1 pipe32, whichtank V I or other. means for the removal V trolling the, direct boiler feed from the .tankto municably connects the tank "water. level in the tank I l rises.

float 34 to admit steam to the feed pump thereby I from the tank H; and in turn. ..from the tank 42finto the boiler.

it is always possible, toraise the water levelin the theboilenas will now appear. A duplex pump 35 is so located that its suction is below. the Water level in the hot well tankwhereby thehot water handled by it runs jto' the-pump cylinders by gravity, therebeing light suction valv es employed inthepump. A second duplex pump is preferably provided as a stand-by. The water "isled to'th pump 3'5- frqm the tank H by means of apipe 36 and the pump delivers to the boiler check 3".0; through a pipe 37.

p A valve 38 having an operative connection with the float 34 is provided for; controlling thelade mission of driving fluid to theduplex'pump. The

driving fluid is preferably steam from the-turret of the locomotive which is led tothe valve 33 by a pipe 40 and from the valve to. the pump by a pipe 41. From theioregoing it will beseen that the supply of driving fluid to the is controlled by the float 34. l a Y Any water 'lost in the'system is madeup by feeding water from afcold water reserve or storage tank 42 to the not well tank as by means ofa valve controlled pipe 43. 'The --pipe 43 -corn- 42 to the. hot well tank H solthat by opening the valve in'the pipe the This causes the pumping water boiler. a

,In the event that it becomes' necessary to lower the boiler water level, atvalve 44a. in a pipe 44 leading from the .pipe 37; to the tank 42 is opened thus admitting water'irom theipump discharge to the tank 42 sothat asiastas'the condensed steam is returned to tank; Ii itis pumped into. the stor-' age tank 42 instead of into the boiler. In this the condenser by means or High preshot well tank H' throughia t am to Pipe 29a corresp led-fromthe pipe 25- to the header 10 of the con-.-

' denser A'valve 301) having a thermostat 30c associated therewith and corresponding to the in which the exhaust In this way,

way complete control of the water level is afforded. Y

'Referring now to Fig. 4, it will be seen that we have therein shown an arrangement in whichthe turbines of the cooling and draft fans are con 'In this modification exhaust nected in series. steam from the locomotive engines led to the draft fan turbine 5 by means of the pipe '7 as before. However, the turbine G'of the. cooling fans receives its from-the turbine 5 by means of pipes 25a and25b driving steam as exhaust steam,

leading from the outlets l5 and 16 of the turbine 5 to the inlets of turbine The exhaust steam of the turbine G isled to the condenserby means of the pipes 27d and 27b which lead from the .exhaust'side of the turbine Gto the branch pipes '19aof the condenser E," there being no connec tion in this instance from the outlets l5 and 160i the turbine 5 to the condenser branches. In other.

words, all exhaust steam first passes through the turbine 5, and.the n through the turbine G. and finally passes into the condenser."

A laypass connection 29 'is operating steam for the; turbine G may be. bypassed to the condenser the fans shown, whereby p v to; control the speed of 22 and 23. Control isafforded by means of a valve 30 in the by-pass connection, which valve may be hand'controlled or automatically controlled, as by means of a thermostat'o r other automatic control device diagrammatically indicate d at 30a. Through the provisicnof the valve controlled by-pass weare 'enabled to by-pass the condenser when the demand for steam by the turbine G is small, as would .be the case in cold weather when it is not necessary to to be admitted to the turbine. G. By manipulating .the valves 30 and 25a any relative amount of steam may be conducted to the turbine G. A

similar 'by-pass connectionmay be providedv in the form illustrated in Fi'gsjl, 2, 3, and 5, in which case,.as shown in Fig.5 for example, a by-pass ending-to the pipe 290i Fig.4 is

.valve 30 andthermostat 30a of -Fig. 4 is provided in the pipe 29a for affording control of the operating steam for the 'coolingfan turbine G.

From the foregoing it will be'seen that we'have cool the condenser as much as in warm weather.

iio

It is also to be noted that a valve'2 5c is provided I in the line 25a for adjusting the amount of'steam its provided a very compactcondensing locomotive steam' of the locomotive engineis condensed and returned as-water. to the driven draft appliance and cooling fans for cooling the condenser. The speed of the fans may-be'varied to accommodate varying airtemperaturean'd load on the boiler. We

contemplate'keeping a feather'oi-steam issuing from the condenser so as; to automaticallykeep -boilenthe steam in its passagetofthe condenser} operating a turbine the feed water at approximately 212. Bythis we mean that we propose -to",oper'ate the con- 1 denser at atmospheric pressu're or slightly there; above, there beingnoattemp't in this case to pro- "duce a vacuum. The-slight pressure to be maine tained inthe condenser'is accomplished by means Offil low pressure relief valve 146' of well known vform indicated in Fig; 3 of the drawings. However, a small. exhaust steam p'ipe 45 may leadv exhausti jsteam from the engine to the hot 7 well ness in the control of the fan speed. I

tank to heat thewate'r .in the'eventof'car'elessl engine and boiler, of an exhaust draft fan for creating draft in the boiler, a steam turbine for driving said exhaust draft fan, means for'leading exhaust steam from the engine to said turbine to operate it, a radiator for condensing exhaust steam, fan means for cooling the radiator, a steam turbine for operating said fan means, means for leading exhaust steam from the draft fan turbine to the second mentioned turbine to operate it, means for leading exhaust steam from the second mentioned turbine to the radiator, a valve controlled by-pass for by-passing operating steam around the second turbine to the radiator, and means for feeding condensate from the radiator to the boiler. t

2. In a power plant, the combination With an engine and boiler of an air cooled condenser, draft creating means for the boiler, a steam turbine for operating said means, fan means for cooling.

said condenser, a steam turbine for operating said fan means, steam connections for passing ex haust steam from the engine through the turbines, said steam in so passing operating to drive the turbines, steam connections for passing exhaust steam from the turbines to the. condenser, means for feeding condensate from the condenser to the, boiler, and means associated with said condensate feeding means for affording control of the water level in the boiler.

3. In a power plant, the combination with an engine and boiler, of a condenser, fan means for creating draft in the boiler, a steam turbine for driving said fan means, ran means for cooling the condenser, a steam turbine for driving the cooling fan means, means for feeding the corn densate from said condenser to the boiler, means for leading exhaust steam from the engine to the draft fan turbine for operating the same, means for leading exhaust steam from the engine to the cooling fan turbine for operating the same, means for leading exhaust steam from thedraft fan turbine to the condenser, means for leading exhaust steam from the coolingfan turbine to the condenser, and means for by-passing operating steam around the cooling fan turbine to the condenser. Y 1

4. In a power plant, the combination with an engine and boiler, of a condenser, fan means for creating draft in the boiler, a steam turbine for driving said fan means, fan means for cooling trolling said valve means.

the condenser, a steam turbine for driving the" cooling fan means, means for feeding the condensate from said condenser to the boiler, means for leading exhaust steam from the engine to the draft fanturbinefor operating the same, means for leading exhaust steam from theengine to the cooling fan turbine for operating the same, means forleading exhaust steam from the'draft fan turbine to the condenser, means for leading exhaust steam from the cooling fan turbine to the condenser, and a valve controlled by-pass for by-passing operating steam around the cooling fan turbine to thecondenser.

5. In a power plant, the combination with an 7 engine and boiler, of a condenser, fan means for creatingdraft in the boiler, a steam turbine for driving said fan means, fan means for cooling the condenser, a steam turbine for driving the cooling fan means, means for feeding the condensate from said condenser to the boiler, meansfor leading exhaust steam to the draft fan turbine for operating the same, means for leading exhaust steam to the, cooling fan turbine for operating the same, means for leading exhaust steam from the draft fan turbine to the condenser, means for leading exhaust steam from the cooling fan turbine to the condenser, and valve means forcontrolling the supply of operating steam to the cooling fan turbine toaiford control of said turbine independently of the draft fan turbine.

6. In a power plant, the combination with an engine and boiler, of a condenser, fan means for creating draft in the boiler, a steam turbine for driving said fan means, fan means for cooling the condenser, a steam turbine for driving the cooling fan means, means for feeding the condensate from said condenser to the boiler, means for leading exhaust steam to the draft fan turbine for operating the same, means for leading exhaust steam to the cooling fan turbine for operating the same, means for leading exhaust steam from the draft fan turbine to the condenser, means for leading exhaust steam from the cooling fan turbine to the condenser, valve trol of said turbine independentlyof the draft fan turbine, and thermostat means for con- 

